Casting preparation system

Abstract

The invention relates to a casting preparation system, belongs to the technical field of casting, and solves the problems of many casting pore defects of titanium alloy and low cutting and grinding efficiency of a casting head after casting in the prior art. The production line comprises casting forming equipment, casting auxiliary compaction equipment, casting head cutting and grinding integrated equipment and conveying equipment. The casting auxiliary compaction equipment is used for compacting molten metal in the mold during casting; the casting head cutting and grinding integrated equipment is used for cutting and grinding a casting head of a casting formed by casting, and the conveying equipment is used for conveying the casting to a machining position of the casting head cutting and grinding integrated equipment. The casting air hole defect can be reduced, and the casting head cutting and grinding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of casting technology, in particular to a casting preparation system. Background Art

[0002] Machined graphite molds have high dimensional accuracy and are widely used in titanium alloy casting processes. However, their high thermal conductivity and strong chilling ability can easily lead to defects such as undercasting and unclear contours on the surface of thin-walled castings. Severe gassing of the graphite mold can lead to a large number of pores inside the casting, which cannot be solved by hot isostatic pressing. At the same time, when the casting solidifies and shrinks, the thick and large parts cannot be compensated in time, forming large shrinkage cavities.

[0003] After casting, the risers need to be cut and ground. To improve processing efficiency, cutting and grinding are usually performed as one. However, the transition between cutting and grinding may cause pauses and waiting due to various reasons, which affects processing efficiency, reduces production efficiency, and increases processing cycle. Summary of the Invention

[0004] In view of the above analysis, the embodiments of the present invention aim to provide a casting preparation system to solve the current problems of many casting porosity defects in titanium alloys and low efficiency in cutting and grinding of post-casting risers.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A casting preparation system, comprising a casting molding device, a casting auxiliary compaction device, a pouring and riser cutting and grinding integrated device, and a conveying device;

[0007] The casting auxiliary compaction equipment is used to compact the molten metal in the mold during casting; the pouring and rising mouth cutting and grinding equipment is used to cut and grind the pouring and rising mouth of the casting after casting, and the conveying equipment is used to convey the casting to the processing location of the pouring and rising mouth cutting and grinding equipment.

[0008] Furthermore, the casting molding equipment includes a vacuum consumable electrode shell furnace, a crucible and a mold.

[0009] Furthermore, the vacuum consumable electrode shell furnace has a rotating shaft, and the crucible is arranged on the rotating shaft;

[0010] When the rotating shaft rotates in the forward direction, the molten metal in the crucible is poured into the mold for casting; when the rotating shaft rotates in the reverse direction, the crucible is reset.

[0011] Furthermore, the casting auxiliary compaction equipment includes a support assembly, a transmission assembly and a compaction assembly.

[0012] Furthermore, the bracket assembly includes a bracket and a guide rail, the bracket is arranged on the upper part of the guide rail, and a slider is arranged on the lower part of the bracket. The slider is arranged in the guide rail, and the bracket can slide in the guide rail.

[0013] Furthermore, the transmission assembly includes a first gear, a second gear, a third gear, a fourth gear, a first rack and a gear output shaft.

[0014] Furthermore, the first gear is arranged on the rotating shaft, the second gear is respectively engaged with the first gear and the third gear, the third gear and the fourth gear are arranged on the gear output shaft; a first rack is arranged at the lower part of the fourth gear, and the fourth gear can roll on the upper part of the first rack.

[0015] Furthermore, the first rack is provided on the bracket, and the first rack can drive the bracket and the transmission assembly and the compacting assembly on the bracket to slide on the guide rail.

[0016] Furthermore, the transmission assembly also includes a ratchet and pawl structure, which includes a ratchet and a pawl; the ratchet and the pawl are attached to the end surface of the fourth gear and are coaxial with the fourth gear.

[0017] Furthermore, the conveying device includes a transmission roller.

[0018] Furthermore, the compacting assembly includes a shift rod and a compacting rod; the compacting rod is hinged to one end of the first rack; the compacting rod has a first end and a second end, the first end is provided with a first spring, and the second end is provided with a pressure head; the pressure head is used to press the unsolidified molten metal.

[0019] Furthermore, a second spring is provided near the second end of the compacting rod; one end of the second spring is connected to the compacting rod, and the other end is connected to the column; the second spring is used to reset the compacting rod.

[0020] Furthermore, the shift lever is provided on the gear output shaft, and the shift lever can rotate along with the gear output shaft; when the shift lever rotates, the first spring can be shifted upward, thereby lifting the first end of the compacting rod upward and pressing the second end downward.

[0021] Furthermore, the integrated pouring and rising head cutting and grinding equipment includes a cam assembly, a roller assembly and a tool assembly; the roller assembly is arranged at the lower part of the cam assembly, and the tool assembly is connected to the roller assembly.

[0022] Furthermore, the cam assembly includes a first cam and a second cam arranged in parallel, the contours of the first cam and the second cam have a first arc line and a second arc line, the diameter of the first arc line is larger than the diameter of the second arc line, and the contour of the first arc line can press down the roller assembly to enable the tool assembly to cut or grind.

[0023] Furthermore, the integrated pouring and rising head cutting and grinding equipment also includes a gear rack assembly, the roller assembly is fixed to the gear rack assembly, and the roller assembly can move on the gear rack assembly with the tool assembly to switch between the cutting station and the grinding station.

[0024] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0025] (1) Compared with the prior art, the present invention uses the rotary shaft of the vacuum consumable electrode shell furnace to drive the transmission assembly to rotate after pouring the molten metal during casting, so that the first rack drives the entire mechanism to slide on the guide rail. After the pressure head end of the compacting rod is aligned with the molten metal in the mold, the lever principle is used to move the first end of the compacting rod upward and the second end downward to press the unsolidified molten metal, thereby compacting the air holes and shrinkage defects, and at the same time increasing the filling force of the titanium alloy graphite mold casting, thereby achieving the purpose of reducing the forming limit of thin-walled parts. The entire structure is energy-saving and consumption-reducing, simple and convenient.

[0026] (2) Compared with the prior art, the present invention provides a pouring and rising head cutting and grinding integrated device, which includes a cam assembly, a roller assembly, a gear rack assembly, and a tool assembly. The gear rack assembly drives the roller assembly and the tool assembly to the cutting station or the grinding station, and the cutting or grinding is performed by the rotation of the cam and the combination of the roller and the cam. The tool switching assembly combines the cam roller structure and the gear rack structure, utilizes the contour curve of the cam, and utilizes the smooth and accurate transmission of the rack gear structure to achieve accurate delivery of the tool to the cutting and grinding stations and rapid switching operations between cutting and grinding, which is precise, controllable, stable, reliable, and efficient.

[0027] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following content, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained as particularly pointed out in the text and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0029] Figure 1Schematic diagram of the structure of the casting preparation system of the embodiment;

[0030] Figure 2 Schematic diagram of the structure of the casting molding equipment and the casting auxiliary compaction equipment in the embodiment;

[0031] Figure 3 A schematic structural diagram of a casting auxiliary compaction device according to an embodiment;

[0032] Figure 4 is a structural schematic diagram of a bracket assembly according to an embodiment;

[0033] Figure 5 It is a schematic diagram of the structure of the transmission component and the compaction component;

[0034] Figure 6 is a structural schematic diagram of the fourth gear and the ratchet pawl structure;

[0035] Figure 7 It is a schematic diagram of the structure of the pouring and rising head cutting and grinding assembly;

[0036] Figure 8 It is a side view structural diagram of the pouring and riser cutting and grinding assembly;

[0037] Figure 9 Schematic diagram of the structure of the roller assembly;

[0038] Figure 10 Schematic diagram of the tool assembly.

[0039] Reference numerals:

[0040] 1-casting molding equipment, 11-vacuum consumable electrode shell furnace, 111-rotating shaft, 12-crucible, 13-mold, 2-casting auxiliary compaction equipment, 21-bracket assembly, 211-bracket, 212-guide rail, 22-transmission assembly, 221-first gear, 222-second gear, 223-third gear, 224-fourth gear, 225-gear output shaft, 226-first rack, 227-ratchet and pawl structure, 2271-ratchet, 2272-pawl, 23-compacting assembly, 231-shift lever, 232-compacting lever, 233-first spring, 234-second spring, 235- Pressure head, 3-gating and rising cutting and grinding integrated equipment, 31-cam assembly, 311-first cam, 312-second cam, 313-connecting rod, 32-gear rack assembly, 321-fifth gear, 322-second rack, 33-roller assembly, 331-roller, 332-roller reset structure, 3321-guide column, 3322-linear bearing, 3323-return spring, 3324-fixed plate, 34-tool assembly, 341-tool fixing bracket, 342-cutting tool, 3421-cutting tool drive motor, 343-grinding wheel, 3431-grinding wheel drive motor, 4-transmission equipment. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0042] A specific embodiment of the present invention, as Figure 1 As shown, a casting preparation system is disclosed, which includes a casting molding device 1, a casting auxiliary compaction device 2, a pouring, riser cutting and grinding integrated device 3 and a conveying device 4.

[0043] like Figure 2 As shown, the casting molding apparatus 1 includes a vacuum consumable electrode shell furnace 11, a crucible 12, and a mold 13. The crucible 12 is used to pour molten metal into the mold 13. The vacuum consumable electrode shell furnace 11 has a rotating shaft 111, with both ends of the rotating shaft 111 hinged at a hinge point via a swinging lever, and the crucible 12 rotates under the swinging of the swinging lever. The crucible 12 is mounted on the rotating shaft 111. When the rotating shaft 111 rotates in the forward direction, the molten metal in the crucible 12 is poured into the mold 13, and the casting is performed. When the rotating shaft 111 rotates in the reverse direction, the crucible 12 returns to its original position.

[0044] like Figure 3 As shown, the casting auxiliary compaction equipment 2 includes a support assembly 21 , a transmission assembly 22 and a compaction assembly 23 .

[0045] like Figure 4 As shown, the bracket 211 includes a plurality of columns, and the bracket assembly 21 is used to support the transmission assembly 22 and the compacting assembly 23. In this embodiment, the bracket assembly 21 includes the bracket 211 and the guide rail 212, and the bracket 211 is arranged on the upper part of the guide rail 212.

[0046] A slider is provided at the lower part of the bracket 211. The slider is provided in the guide rail 212 and can slide in the guide rail 212, and drive the bracket 211 and the transmission component 22 and the compaction component 23 on the bracket 211 to move together, so that the compaction component 23 can repeatedly compact the casting metal liquid.

[0047] Considering the distance between the rotating shaft 111 and the mold 13, as well as the transmission efficiency and transmission accuracy, the transmission assembly 22 includes a multi-stage gear transmission structure and a gear first rack 226 structure. Figure 5As shown, the transmission assembly 22 includes a first gear 221, a second gear 222, a third gear 223, a fourth gear 224, a gear output shaft 225, and a first rack 226. The first gear 221 is mounted on the rotating shaft 111 of the vacuum consumable electrode shell furnace 11 and rotates with the rotating shaft 111. The upper portion of the second gear 222 meshes with the first gear 221, and the lower portion meshes with the third gear 223. The third gear 223 and the fourth gear 224 are coaxial. The lower portion of the fourth gear 224 is provided with a first rack 226. Driven by the gear output shaft 225, the fourth gear 224 can roll on the upper portion of the first rack 226.

[0048] Furthermore, the first rack 226 is disposed on the bracket 211 , and the first rack 226 can drive the bracket 211 and components on the bracket 211 to slide on the guide rail 212 , so that the compacting assembly 23 is aligned with the upper part of the molten metal in the mold 13 .

[0049] Furthermore, if Figure 6 As shown, the transmission assembly 22 also includes a ratchet and pawl structure 227. A ratchet 2271 and a pawl 2272 are attached to the end surface of the fourth gear 224 and are coaxial with the fourth gear 224. When the gear output shaft 225 drives the fourth gear 224 to rotate, the ratchet 2271 and the pawl 2272 rotate synchronously. When the gear output shaft 225 rotates in the forward direction, the pawl 2272 engages with the teeth of the ratchet 2271, pushing the ratchet 2271 to rotate, achieving unidirectional rotation of the ratchet 2271. When the gear output shaft 225 rotates in the reverse direction, the pawl 2272 slides on the back of the teeth of the ratchet 2271, preventing the ratchet 2271 from rotating further.

[0050] The compacting assembly 23 includes a shifting rod 231 , a compacting rod 232 , a first spring 233 , a second spring 234 and a pressing head 235 .

[0051] The shift lever 231 is mounted on the gear output shaft 225, with its length perpendicular to the axis of the gear output shaft 225. The shift lever 231 is capable of rotating along with the gear output shaft 225. The compacting lever 232 is mounted on the end of the first rack 226 that is distal to the fourth gear 224. The first rack 226 is provided with a hinge axis, and the compacting lever 232 is hinged to the hinge axis, forming a lever structure with the first rack 226 as the fulcrum.

[0052] The compacting rod 232 includes a first end and a second end. A first spring 233 is disposed below the first end, and a pressure head 235 is disposed below the second end. When the first end tilts upward, the second end presses downward on the unsolidified molten metal. As the first end moves downward, the second end moves away from the molten metal.

[0053] Furthermore, in order to enable the compacting rod 232 to reset immediately after pressing the molten metal, a second spring 234 is provided between the first rack 226 and the pressure head 235. The second spring 234 connects the compacting rod 232 and the column, and resets the compacting rod 232 after the lever 231 leaves the compacting rod 232.

[0054] The position of the first spring 233 corresponds to the position of the end of the lever 231, which has rotated below the compacting rod 232. When the end of the lever 231 rotates below the first spring 233, it contacts the first spring 233. The lever 231 continues to rotate, compressing the first spring 233 upward and causing the first end of the compacting rod 232 to rise. Under the action of the lever, the second end descends, causing the ram 235 to contact and press the mold 13 and the molten metal.

[0055] The ram 235 is made of graphite and is in the shape of a circular plate. As the ram 235 moves downward, it applies pressure to the unsolidified molten metal, promoting its flow during the casting process. The lever 231 continues to rotate, releasing the first spring 233. The ram 235, under the return action of the second spring 234, moves away from the pouring cup.

[0056] During operation, the first cycle begins with the rotary shaft 111 of the vacuum consumable electrode shell furnace 11 rotating forward, driving the transmission assembly 22. The fourth gear 224 rolls on the first rack 226, driving the entire mechanism to slide on the guide rail 212 of the support assembly 21, while the molten metal in the crucible 12 is poured into the mold 13. After the pouring is completed, the rotary shaft 111 reverses, the crucible 12 returns to its original position, and the pawl 2272 slides on the back of the teeth of the ratchet 2271, preventing the ratchet 2271 from further rotation. In the second cycle, when the rotary shaft 111 of the vacuum consumable electrode shell furnace 11 rotates forward, the first rack 226 moves until the pressure head 235 is aligned with the beaker. The rotary shaft 111 rotates in the reverse direction. As the crucible 12 returns to its original position, the lever 231 rotates and compresses the first spring 233, causing the first end to move upward. Under the action of the compacting rod 232, the second end presses down on the unsolidified molten metal in the mold 13, promoting its flow. The shifting rod 231 continues to rotate and leaves the first spring 233 , and the compacting rod 232 causes the pressing head 235 to leave the pouring cup opening under the action of the second spring 234 .

[0057] Compared to the prior art, this embodiment, after pouring the molten metal during casting, utilizes the rotary shaft 111 of the vacuum consumable electrode shell furnace 11 to drive the transmission assembly 22 to rotate, causing the first rack 226 to drive the entire mechanism to slide on the guide rail 212, bringing the compaction assembly 23 close to the mold. After the pressure head 235 end of the compaction rod 232 is aligned with the molten metal in the mold 13, the lever 231 is used to move the first end of the compaction rod 232 upward and the second end downward to press the unsolidified molten metal, thereby compacting pores and shrinkage defects, while increasing the filling force of the titanium alloy graphite mold casting, and achieving the purpose of reducing the forming limit of thin-walled parts. The entire mechanism uses the rotary shaft 111 of the vacuum consumable electrode shell furnace 11 of the casting equipment 1 as the power source. Through the precise transmission of the gear rack, the compaction assembly 23 is brought to the position of the mold 13. The lever 231 rotates with the gear output shaft 225, and the leverage of the compaction rod 232 is used to compact the casting. The entire mechanism is energy-saving and cost-reducing, and has a simple and convenient structure.

[0058] After the molten metal is formed in the casting, the pouring and rising heads need to be cut and ground, and the pouring and rising head cutting and grinding integrated equipment 3 is used for cutting and grinding. Figure 7 and Figure 8 As shown, the pouring / riser cutting and grinding integrated device 3 includes a cam assembly 31 , a first gear rack assembly 32 , a roller assembly 33 and a tool assembly 34 .

[0059] The cam assembly 31 includes a first cam 311, a second cam 312, and a connecting rod 313. The first cam 311 and the second cam 312 are arranged in parallel, and the first cam 311 and the second cam 312 are both connected to the corresponding cam motor output spindle, and the cams can rotate around the cam motor spindle. In order to synchronize the first cam 311 and the second cam 312, a connecting rod 313 is provided between the rotating shafts of the first cam 311 and the second cam 312. The first cam 311 and the second cam 312 have smooth contour curves, including a first circular arc line and a second circular arc line, and the first circular arc line and the second circular arc line can be smoothly connected. Specifically, the diameter of the first circular arc line is greater than the diameter of the second circular arc line.

[0060] The roller assembly 33 is arranged below the cam assembly 31. Figure 9 As shown, the roller assembly 33 includes a roller 331 and a roller reset structure 332. The upper end of the roller reset structure 332 is fixed to the roller 331. The roller reset structure 332 includes a guide post 3321, a linear bearing 3322, and a return spring 3323. The guide post 3321 and the return spring 3323 are connected, and the guide post 3321 can drive the roller reset structure 332 in vertical linear motion. A fixing plate 3324 is provided below the return spring 3323. The fixing plate 3324 is connected to the cutter assembly 34, so that the vertical motion of the roller 331 synchronously drives the vertical motion of the cutter assembly 34, thereby achieving cutting or grinding.

[0061] Furthermore, the central angle of the first arc of the cam and the rotation speed of the cam are set to correspond to the duration of cutting or grinding. When the cam contacts the roller starting from the first arc, the roller 331 is pressed down to cut or grind, and the cutting or grinding is completed when the cam rotates to the end of the arc.

[0062] The first rack and pinion assembly 32 includes a fifth gear 321 and a second rack 322, which mesh with the fifth gear 321. The fifth gear 321 is equipped with a gear motor that drives the fifth gear 321 to rotate, thereby driving the second rack 322. A roller reset mechanism 332 is located at one end of the second rack 322 and moves with it, driving the roller 331 and the tool assembly 34. The movement of the fifth gear 321 and the second rack 322 allows for precise adjustment of the cutting and grinding positions, ensuring accurate tool positioning.

[0063] like Figure 10 As shown, the tool assembly 34 includes a tool holder 341, a cutting tool 342, and a grinding wheel 343. The tool holder 341 is fixedly connected to the fixing plate 3324. The cutting tool 342 and the grinding wheel 343 are respectively provided at the two ends of the lower portion of the tool holder 341. The cutting tool 342 and the grinding wheel 343 are respectively provided with a cutting tool drive motor 3421 and a grinding wheel drive motor 3431.

[0064] During operation, the cam rotates, and when the first arc of the first cam 311 first contacts the roller 331, the tool is in the first working position, the cutting position. Roller 331 is pressed downward, and the guide post 3321 compresses the return spring 3323 and the fixed plate 3324, driving the roller reset mechanism 332 downward. Because the fixed plate 3324 is secured to the tool holder 341, the fixed plate 3324 descends, driving the cutting tool 342 and grinding wheel 343 downward. The cutting tool drive motor 3421 is activated, and the cutting tool 342 begins to operate, beginning to cut the casting riser.

[0065] The cam continues to rotate, and since the distance between the first arc line and the rotation axis 111 is fixed, the cutting tool 342 continues cutting until the cam rotates to the second arc line at the bottom.

[0066] After the cam rotates until the second arc line is at the bottom, the first cam 311 no longer contacts the roller 331. The roller 331 returns to its original position under the action of the return spring, and the cutting tool 342 leaves the casting, completing the cutting process. The fifth gear 321 begins to rotate, and the second rack 322 moves toward the fifth gear 321, driving the roller 331, the roller return structure 332, and the cutter assembly 34 to operate synchronously. After the cam rotates until the second arc line is at the bottom, the second cam 312 contacts the roller 331 and presses it downward. The roller 331 is pressed downward, and the guide column 3321 compresses the return spring 3323 and the fixing plate 3324, driving the roller return structure 332 and the cutter assembly 34 downward. Since the fixing plate 3324 is fixed to the tool fixing frame 341, the fixing plate 3324 descends, the tool fixing frame 341 drives the cutting tool 342 and the grinding wheel 343 to descend, the grinding wheel drive motor 3431 is started, the grinding wheel 343 starts to operate, and the casting riser begins to be ground.

[0067] The cam continues to rotate, and since the distance between the first arc line and the rotation axis 111 is fixed, the grinding wheel 343 continues cutting until the cam rotates to the second arc line, and the grinding is completed.

[0068] Compared to the prior art, this embodiment provides integrated pouring / riser cutting and grinding equipment 3, which includes a cam assembly 31, a roller assembly 33, a rack and pinion assembly 32, and a tool assembly 34. The rack and pinion assembly 32 drives the roller assembly 33 and tool assembly 34 to the cutting or grinding station. The casting is cut or ground by rotating the cam, setting the cam's profile, and pressing the cam against the roller. Station switching is achieved through the transmission of the rack and pinion. The tool switching assembly combines a cam-roller structure with a rack and pinion structure, utilizing the cam's profile curve and the smooth and precise transmission of the rack and pinion structure to achieve accurate delivery of the tool to the cutting and grinding stations, as well as rapid switching between cutting and grinding operations. This is precise, controllable, stable, reliable, and efficient.

[0069] The conveyor 4 transports the workpiece to the integrated pouring, rising, cutting, and grinding equipment 3. The conveyor 4 comprises conveyor rollers, a drive shaft, and a drive motor. After the casting reaches the cutting or grinding location, it slides off the conveyor rollers and secures them for cutting or grinding. Because the conveyor roller structure is conventional, its detailed description is omitted here.

[0070] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A casting preparation system, characterized in that: It comprises a casting molding device (1), a casting auxiliary compacting device (2), a pouring and rising head cutting and grinding integrated device (3) and a conveying device (4); The casting auxiliary compacting device (2) is used to compact the molten metal in the mold (13) during casting; the pouring head and riser cutting and grinding device (3) is used to cut and grind the pouring head and riser of the casting after casting; and the conveying device (4) is used to convey the casting to the processing location of the pouring head and riser cutting and grinding device (3).

2. The casting preparation system according to claim 1, characterized in that: The casting molding equipment (1) comprises a vacuum consumable electrode shell furnace (11), a crucible (12) and a mold (13).

3. The casting preparation system according to claim 2, characterized in that: The vacuum consumable electrode shell furnace (11) has a rotating shaft (111), and the crucible (12) is arranged on the rotating shaft (111); When the rotating shaft (111) rotates forward, the molten metal in the crucible (12) is poured into the mold (13) for casting; when the rotating shaft (111) rotates backward, the crucible (12) is reset.

4. The casting preparation system according to claim 3, characterized in that: The casting auxiliary compaction equipment (2) comprises a support assembly (21), a transmission assembly (22) and a compaction assembly (23).

5. The casting preparation system according to claim 4, characterized in that: The bracket assembly (21) comprises a bracket (211) and a guide rail (212); the bracket (211) is arranged on the upper portion of the guide rail (212); a slider is arranged on the lower portion of the bracket (211); the slider is arranged in the guide rail (212); and the bracket (211) is capable of sliding in the guide rail (212).

6. The casting preparation system according to claim 5, characterized in that: The transmission assembly (22) includes a first gear (221), a second gear (222), a third gear (223), a fourth gear (224), a first rack (226) and a gear output shaft (225).

7. The casting preparation system according to claim 6, characterized in that: The first gear (221) is arranged on the rotating shaft (111); the second gear (222) is meshed with the first gear (221) and the third gear (223) respectively; the third gear (223) and the fourth gear (224) are arranged on the gear output shaft (225); a first rack (226) is arranged at the lower part of the fourth gear (224); and the fourth gear (224) can roll on the upper part of the first rack (226).

8. The casting preparation system according to claim 7, characterized in that: The first rack (226) is arranged on the bracket (211), and the first rack (226) can drive the bracket (211) and the transmission assembly (22) and the compaction assembly (23) on the bracket (211) to slide on the guide rail (212).

9. The casting preparation system according to claim 7, characterized in that: The transmission assembly (22) further includes a ratchet and pawl structure (227); the ratchet and pawl structure (227) includes a ratchet (2271) and a pawl (2272); the ratchet (2271) and the pawl (2272) are attached to the end surface of the fourth gear (224) and are coaxial with the fourth gear (224).

10. The casting preparation system according to claim 1, characterized in that: The conveying device (4) comprises a transmission roller.

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